Home / 163,285.20-225,321.14-91,651.39

Finding the Fourth Proportional to 163,285.20, 225,321.14 and 91,651.39

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Solution

The fourth proportional to 163,285.20, 225,321.14 and 91,651.39 is: 126,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,285.20 : 225,321.14 = 91,651.39 : x
  2. Step 2: Convert to fraction form
    163,285.20/225,321.14 = 91,651.39/x
  3. Step 3: Cross multiply
    163,285.20x = 225,321.14 × 91,651.39
  4. Step 4: Simplify right side
    163,285.20x = 20,650,994,577.04
  5. Step 5: Solve for x
    x = 20,650,994,577.04/163,285.20
  6. Step 6: Final answer
    x = 126,471.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.